/*
 * Copyright (c) 2020 Particle Industries, Inc.  All rights reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation, either
 * version 3 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
 */

#pragma once

#include <cstdint>

namespace particle {

inline int bcdToDec(uint8_t bcd) {
    if ( ((bcd & 0x0F) > 9) || (((bcd >> 4) & 0x0F) > 9) ) {
        return -1;
    }
    return ((bcd >> 4) * 10) + (bcd & 0xF);
}

inline int decToBcd(uint8_t dec) {
    if (dec > 99) {
        return -1;
    }
    return ((dec / 10) << 4) + (dec % 10);
}

} // namespace particle
